Moduł z czujnikiem alkoholu: MQ-3

Moduł z czujnikiem mierzącym poziom alkoholu w powietrzu, może zostać użyty do budowy alkomatu. Zestaw zawiera również przewody połączeniowe.

Overview

* Sensitive for alcohol, ethanol

* Output voltage boosts along with the concentration of the measured gases increases

* Fast response and recovery

* Adjustable sensitivity

* Signal output indicator

Specifications

* Power: 2.5V ~ 5.0V

* Dimension: 40.0mm * 21.0mm

* Mounting holes size: 2.0mm

Applications

* Car alcohol alarm

* Breathalyser

How to Use In the case of working with a MCU:

* VCC ↔ 2.5V ~ 5.0V

* GND ↔ power supply ground

* AOUT ↔ MCU.IO (analog output)

* DOUT ↔ MCU.IO (digital output)

Package Contains

* MQ-3 Gas Sensor × 1

* 4-pin custom connector jumper wire × 1

Downloads

Development resources: demo codes, schematic, datasheets, etc. Click here to download

Selection Guide

Part Number Sensitive Gas Application

MQ-135 Gas Sensor benzene, alcohol, smoke Air quality monitor

MQ-2 Gas Sensor LPG, propane, hydrogen Gas leakage detector

MQ-3 Gas Sensor alcohol, ethanol Car alcohol alarm, breathalyser

MQ-5 Gas Sensor LPG, natural gas, coal gas Gas leakage detector

MQ-7 Gas Sensor carbon monoxide Carbon monoxide monitor